WO2010114217A1

WO2010114217A1 - Dish washer

Info

Publication number: WO2010114217A1
Application number: PCT/KR2010/000045
Authority: WO
Inventors: 표준호; 주병현; 최용진
Original assignee: 엘지전자 주식회사
Priority date: 2009-04-03
Filing date: 2010-01-06
Publication date: 2010-10-07
Also published as: US20110315174A1; DE112010001512T5; US8985128B2; KR101634172B1; KR20100110548A; CN102355843A

Abstract

The present invention relates to a dish washer in which a structure for mounting a drain pump is improved for minimizing water, vibration and noise. The dish washer includes a cabinet (10) which forms an exterior of the dish washer, a tub (200) in the cabinet (10) to form a space for washing the dishes, a sump assembly (600) at a lower portion of the cabinet (10), the sump assembly (600) having a drain chamber (620) for holding washing water to be drained, and a drain pump assembly (700) coupled to a lower side of an outside of the sump assembly (600) so as to be in communication with one side of the drain chamber (620) for draining the washing water from the drain chamber (620) by pumping, wherein the drain pump assembly (700) is mounted tilted upward at a predetermined angle from an inside bottom surface of the cabinet (10).

Description

dish washer

The present invention relates to a dishwasher, and more particularly, to a dishwasher capable of minimizing residual water and vibration noise by improving a drainage pump installation structure.

A dishwasher is a device that automatically washes and dries dishes by spraying detergent and washing water onto the dishes. The dishwasher includes a cabinet having a washing chamber formed therein, a plurality of racks installed in the washing chamber to store dishes, a sump for storing the washing water, a pump for supplying the washing water in the sump to the spray arm, and washing water. And a sump assembly provided with a heater for heating, and a plurality of spray arms arranged above and below the rack to spray washing water toward the dishes stored in the rack.

When the pump is running, the spray arm washes the dishes by spraying the wash water in the sump onto the dishes. The washing water sprayed on the dish is recovered into the sump and then sprayed back into the dish. When the cleaning process is completed, the drain pump is activated to drain the water in the sump through the drain hose, and after the drain pump stops, clean water is supplied into the sump for the rinsing process. Clean water is sprayed back into the dishes and used to rinse the dishes.

However, such a conventional dishwasher has an inconvenience to work after exposing the sump assembly by inverting the dishwasher itself in order to separate the drainage pump by assembling the drainage pump or replacing parts.

In addition, since the drain pump and the sump assembly are directly connected without a separate vibration isolating structure, the operation vibration and the resulting noise of the drain pump are directly transmitted to the sump assembly, thereby affecting the vibration and noise of the dishwasher itself.

An object of the present invention is to provide a dish washer that can improve the drainage pump installation structure to minimize residual water and vibration noise.

The present invention to achieve the above object is a cabinet forming an appearance; A tub formed inside the cabinet to form a washing space in which dishes are washed; A sump assembly provided at a lower side of the cabinet and having a drain chamber configured to store wash water to be drained; And a drain pump assembly coupled to an outer lower portion of the sump assembly and communicating with one side of the drain chamber to pump and drain the washing water in the drain chamber, wherein the drain pump assembly is predetermined with an inner bottom surface of the cabinet. It is installed to be inclined upward to form an angle, the drain pump assembly and the sump assembly provides a dishwasher, characterized in that interconnected with an insulating material.

The drain chamber is characterized in that the outer bottom surface is formed to a depth having a minimum distance (L) with the inner bottom surface of the cabinet.

The drain chamber further comprises a chamber discharge part connected to the drain pump assembly at one lower side.

The drain pump assembly may further include a chamber coupling pipe coupled to the chamber discharge part.

The chamber coupling tube may be installed to be inclined upward at a predetermined angle from the center line of the chamber discharge part to support the drain pump assembly.

The minimum distance (L) is characterized in that the interval so that the drainage pump assembly and the inner bottom surface of the cabinet does not interfere with the drain pump assembly coupled to the chamber discharge.

A check valve member is inserted into the chamber discharge part to prevent a residual water backflow in the drain pump assembly.

In addition, the present invention provides a cabinet for forming an appearance; A tub formed inside the cabinet to form a washing space in which dishes are washed; A sump assembly provided at a lower side of the cabinet and having a drain chamber for installing a drain filter for filtering washing water; And a drain pump assembly coupled to an outer lower portion of the sump assembly and communicating with one side of the drain chamber to pump and drain the wash water in the drain chamber, wherein the drain pump assembly and the sump assembly are interconnected with an insulating material. And a check valve member is inserted between the connection flow paths.

The drain chamber further includes a chamber discharge part connected to the drain pump assembly at one lower side, and the drain pump assembly further includes a chamber coupling pipe coupled to the chamber discharge part.

As described above, the dishwasher according to the embodiment of the present invention has the effect of minimizing the residual water by assembling the inclined when installing the drain pump.

In addition, the vibration isolating by applying an insulator when installing the drainage pump has the effect of minimizing vibration and noise caused by the operation of the drainage pump.

1 is a cross-sectional view of the dishwasher according to an embodiment of the present invention.

2 is a schematic view of the sump assembly according to FIG. 1.

3 is a partial perspective view of the sump assembly according to FIG. 1;

4 is a partial cross-sectional view of the sump assembly according to FIG. 1.

Figure 5 is a cross-sectional view showing a coupling state of the check valve member according to the sump assembly of the present invention.

Figure 6 is a perspective view of the check valve member according to FIG.

* Explanation of symbols for the main parts of the drawings

10: cabinet 200: tub

300: connector 400: water supply pipe

500: drain pipe 600: sump assembly

610: sump 620: drainage chamber

622: chamber discharge part 640: check valve member

700: drain pump assembly 710: chamber coupling pipe

720: discharge end 730: coupling member

Hereinafter, a dishwasher according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the dishwasher according to one embodiment of the present invention, FIG. 2 is a schematic view of the sump assembly according to FIG. 1, and FIG. 3 is a partial perspective view of the sump assembly according to FIG. 1. Figure 4 is a partial cross-sectional view of the sump assembly according to Figure 1, Figure 5 is a cross-sectional view showing a coupling state of the check valve member according to the sump assembly of the present invention, Figure 6 is a perspective view showing the check valve member according to Figure 5 to be.

As shown in FIG. 1, the dishwasher according to the embodiment of the present invention has a cabinet 10 that greatly defines an exterior, a tub 200 that forms a washing chamber 210 in which dishes are washed, and a tub ( The door 100 for opening and closing the 200, and the sump assembly 600 for supplying and recovering the washing water.

In the tub 200, a washing chamber 210 is formed to accommodate the dishes, and a plurality of racks 220 on which the dishes are placed are installed in the washing chamber 210. In the state where the dishes are stored in the rack 220, the washing water is sprayed through the spraying arm 230 to wash the dishes.

The injection arm 230 includes an upper arm 232 disposed below the upper rack 222 and a lower arm 234 disposed below the lower rack 224. The upper arm 232 and the lower arm 234 are rotatably installed, and each spray arm 230 is provided with a plurality of spray nozzles (not shown) for spraying the washing water toward the dishes.

1 to 3, the sump assembly 600 is connected to the upper arm 232 and the lower arm 234 by a connecting pipe 300. The sump assembly 600 receives the washing water from an external water source through the water supply pipe 400 and stores the washing water in the sump 610, and selectively washes the washing water to the upper arm 232 and the lower arm 234 through the connecting pipe 300. Supply at the same time or simultaneously. The washing water used for washing is drained through the drain pipe 500.

As shown in FIGS. 2 and 3, the sump assembly 600 includes a sump 610 for storing washing water, a water pump (not shown) for pumping water stored in the sump 610, and washing of dishes. Drain chamber 620 is used to store the wash water used in, and the drain pump assembly 700 for draining the wash water. The sump 610 is provided with a heater (not shown) for heating the washing water, and the drain chamber 620 is provided with a drain filter (not shown) for filtering the washing water.

Since the sump assembly 600 of the present invention has a structure in which the drain pump assembly 700 is separately coupled to the lower outer side of the sump assembly 600, unlike the conventional dishwasher in which the drain pump assembly is integrally formed inside the sump assembly, This structure can extend the insertion space of the filter. Therefore, it is possible to increase the size of the drain filter, it is possible to prevent the drain filter is blocked by debris to reduce the drainage efficiency.

The sump 610 is formed in a cylindrical shape on one side of the sump assembly 600, and a heater (not shown) for heating the stored wash water is detachably installed therein. The washing water heated by the heater is transferred to the tub 200 along the supply flow path connected to the sump 610 and is supplied through the injection arm 230.

The drain chamber 620 is formed in a cylindrical shape on the other side of the sump assembly 600, a drain filter is installed therein to filter foreign matter from the wash water used for dish washing. The drain chamber 620 is spaced apart from the inner bottom surface of the cabinet 10 by a minimum distance L so that the outer bottom surface of the drain chamber 620 does not contact the inner bottom surface of the cabinet 10.

That is, the height of the drain chamber 620 is formed at a height having a minimum distance (L) with the inner bottom surface of the cabinet 10 while ensuring the maximum installation space of the drain filter (the reason described in the drain pump assembly portion) ). The washing water filtered through the drainage filter is re-watered through the water supply connection pipe 640 before the drainage pump is operated to be used to wash the dishes. When the drainage pump is operated, the washing water is drained through the drainage pipe 500.

The drain chamber 620 is provided with a chamber discharge part 622 in communication with the drain pump assembly 700 on the lower side. The chamber discharge part 622 is in the form of a cylindrical tube, and a check valve member 640 is inserted into the inner end of the chamber discharge part 622 to prevent backwash water from the drain pump assembly 700 (in this regard). It will be described later). In addition, the drain pump assembly 700 is coupled to the chamber discharge part 622.

The drain pump assembly 700 includes a drain pump (not shown) and an impeller (not shown) for pumping the washing water, and a drain motor for driving them. The chamber coupling pipe 710 coupled to the chamber discharge part 622 formed in the drain chamber 620 is connected to the impeller side of the drain pump assembly 700.

The chamber coupling pipe 710 is formed to be inclined upward with respect to the inner bottom surface of the cabinet 10 such that the drain pump assembly 700 is installed to be inclined from the inner bottom surface of the cabinet 10. That is, the chamber coupling pipe 710 is installed to be inclined upwardly from the center line, assuming that there is a virtual center line along the longitudinal direction of the chamber discharge part 622.

4 illustrates an example in which the chamber coupling pipe 710 is inclined upward by about 25 degrees from the center line of the chamber discharge part 622. When the chamber coupling tube 710 is formed horizontally with the inner bottom surface of the cabinet 10, the drain pump assembly 700 contacts the inner bottom surface of the cabinet 10 because of the size of the drain pump assembly 700. It is difficult to secure a sufficient size of the drain chamber 620 to be installed so as not to.

Because the drain pump assembly 700 is installed so as not to contact the inner bottom surface of the cabinet 10, the chamber coupling tube 710 connected to the bottom of the drain chamber 620 is sufficiently separated from the inner bottom surface of the cabinet 10. Because it must be installed to have. To this end, the drain chamber 620 should be sufficiently spaced apart from the inner bottom surface of the cabinet 10, and the height of the drain chamber 620 should be reduced.

However, in order to secure the efficiency of the drain filter installed in the drain chamber 620, the size of the drain filter cannot be reduced unconditionally, and thus the size of the drain chamber 620 must be sufficiently secured.

Therefore, in order to sufficiently secure the size of the drainage chamber 620, the chamber coupling pipe 710 is formed on the inner bottom surface of the cabinet 10 rather than being formed horizontally with the inner bottom surface of the cabinet 10. It is preferable to be inclined upwardly from.

In addition, the chamber coupling pipe 710 is formed to be inclined to facilitate the detachment of the chamber coupling pipe 710 while the air inside the chamber coupling pipe 710 is easy to escape when the drain pump assembly 700 is fastened. It is desirable to be.

When the chamber coupling pipe 710 is formed to be inclined and the discharge end 720 through which the wash water drained out through the drain pump exits is formed in the side or the upper direction of the drain pump assembly 700, the air is discharged into the drain pump assembly 700. It can be kicked. When bubbles generated during drainage are collected in the drain pump assembly 700, the drainage efficiency may be reduced, so that the discharge end 720 is formed to be inclined slightly to the side of the drain pump assembly 700 to the side. desirable.

When the chamber coupling pipe 710 is installed to be inclined, the washing water inside the drain pump assembly 700 may flow back to the drain chamber 620 through the chamber discharge part 622. At this time, it is preferable that the check valve member 640 is inserted into the chamber discharge part 622 in order to prevent the back flow of the washing water from the drain pump side.

As shown in FIGS. 5 and 6, the check valve member 640 is formed in a cylindrical shape, and an edge thereof is fixed to the inside of the chamber discharge part 622, and the opening and closing part 642 is inside the chamber discharge part 622. It is supported by the support protrusion 622a formed in the.

The check valve member 640 opens and closes the chamber discharge part 622 by the hydraulic pressure when the washing water flows in from the drainage chamber 620 to the drain pump assembly, and opens the chamber when the washing water flows in from the drainage filter side. It is installed to close the discharge portion 622.

When the check valve member 640 is inserted into the chamber discharge part 622, the check valve member 640 may be installed at a relatively lower position than when the check valve member 640 is formed inside the chamber coupling pipe 710, thereby minimizing the remaining amount.

On the other hand, as shown in Figure 4, the drain pump assembly 700 is preferably spaced apart from the inner bottom surface of the cabinet 10 to prevent the transmission of vibration generated during operation. Accordingly, the drainage chamber 620 may be connected to the inner bottom surface of the cabinet 10 so that the drainage pump assembly 700 can sufficiently secure the size of the drainage chamber 620 without interfering with the inner bottom surface of the cabinet 10. It is preferred to have a separation interval L.

In addition, the drain pump assembly 700 is preferably vibration-insulated so that vibration generated during operation is not directly transmitted to the outside of the washing space or the cabinet 10 through the sump assembly 600.

To this end, as shown in FIG. 4, the drain pump assembly 700 is coupled to the lower side of the sump assembly 600 by a coupling member 730.

The coupling member 730 is formed of an insulator such as rubber or silicon and connects one side of the drain pump assembly 700 and the lower one side of the sump assembly 600. To this end, the first coupling part 700a and the second coupling part 600a are formed in the drain pump assembly 700 and the sump assembly 600.

The coupling member 730 has one end coupled to the first coupling portion 700a and the other end coupled to the second coupling portion 600a to connect the drain pump assembly 700 and the sump assembly 600. In addition, since the material is an insulating material such as rubber or silicon, it has a predetermined elasticity and thus may insulate it when vibration occurs due to the operation of the drain pump assembly 700. Therefore, it is possible to prevent the operating vibration of the drain pump assembly 700 is transmitted to the sump assembly 600.

As described above, the dishwasher according to an embodiment of the present invention to secure the size of the drain chamber to maximize the ease of installation and filter efficiency of the drain pump assembly by installing the drain pump assembly inclined from the inner bottom surface of the cabinet. Can be.

Meanwhile, the present invention is not limited to the above-described embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims set forth.

Claims

A cabinet forming an appearance;

A tub formed inside the cabinet to form a washing space in which dishes are washed;

A sump assembly provided at a lower side of the cabinet and having a drain chamber configured to store wash water to be drained; And

It is coupled to the outer lower portion of the sump assembly and is in communication with one side of the drain chamber comprises a drain pump assembly for pumping and draining the wash water in the drain chamber,

The drain pump assembly is installed to be inclined upward to form a predetermined angle with the inner bottom surface of the cabinet,

And the drain pump assembly and the sump assembly are interconnected with an insulating material.
The method of claim 1,

The drainage chamber of the dishwasher, characterized in that the outer bottom surface is formed to a depth having a minimum distance (L) with the inner bottom surface of the cabinet.
The method of claim 2,

The drain chamber further comprises a chamber discharge part connected to the drain pump assembly on one lower side.
The method of claim 3,

The drain pump assembly further comprises a chamber coupling pipe coupled with the chamber discharge part.
The method of claim 4, wherein

The chamber coupling pipe is dishwasher, characterized in that installed inclined upwardly by a predetermined angle from the center line of the chamber discharge portion to support the drainage pump assembly.
The method of claim 5,

The minimum spacing (L) is a dishwasher, characterized in that the interval so that the inner bottom surface of the drain pump assembly and the cabinet does not interfere with the drain pump assembly coupled to the chamber outlet.
The method of claim 3,

And a check valve member inserted into the chamber discharge part to prevent a backflow of residual water in the drain pump assembly.
A cabinet forming an appearance;

A tub formed inside the cabinet to form a washing space in which dishes are washed;

A sump assembly provided at a lower side of the cabinet and having a drain chamber for installing a drain filter for filtering washing water; And

It is coupled to the outer lower portion of the sump assembly and is in communication with one side of the drain chamber comprises a drain pump assembly for pumping and draining the wash water in the drain chamber,

The drain pump assembly and the sump assembly are interconnected with an insulating material, the check valve member is inserted between the connecting flow path.
According to claim 8,

The drainage chamber of the dishwasher, characterized in that the outer bottom surface is formed to a depth having a minimum distance (L) with the inner bottom surface of the cabinet.
The method of claim 9,

The drain chamber further comprises a chamber discharge part connected to the drain pump assembly at one lower side, and the drain pump assembly further comprises a chamber coupling pipe coupled to the chamber discharge part.
The method of claim 10,

The minimum spacing (L) is a dishwasher, characterized in that the interval so that the inner bottom surface of the drain pump assembly and the cabinet does not interfere with the drain pump assembly coupled to the chamber outlet.